Conversion is a straightforward inch to mm conversion. Inches: Millimetres: Spanner: 0.250: 1/4 AF: 0.276: 7mm: 7mm: 0.313: 5/16 AF: 0.315: 8mm: 8mm: 0.344 Immigration Overseas helps you in all these spectrums. The Americans, however did standardise the Unified screws to have a specific relationship between the screw diameter and head size across flats. I am looking to buy socket tool kit to do mechanical jobs. Unfortunately, this does not indicate the across flats (AF) size of the screw or nut. ... you will probably find either spanner will do. Contact us now. This is not based on any research but is how I was taught the difference between spanners and wrenches as a child. Metric is fairly universal nowadays on most things. Will a set of modern AF spanners fit, or is it a bit harder than that? I enjoyed reading and the information values. 2.047 inches = 52mm (Some land rover hub nuts) used as substitute for 1 + 1/4 inch whitworth (actually .003 smaller). On my multimeter what does 20K represent in testing what Volts Ac ? The bottom tray includes 5 die stocks to hold the dies in size 20x5, 20x7, 25x9, 30x11, 38x14, a large tap wrench, and a small tap wrench. A Whitworth wrench is sized according to the diameter of the shank of the bolt, not the head. Click here to find your hidden name meaning, Thank you so much for such an informative piece of information :) If anyone interested similar one's have a look here besttoolsbrand Thanks, Wow :) This is an incredible collection of ideas!Waiting for more helpful pieces. You would amazing to read a similar one here- besttoolsbrand, mechanic tool set Welcome to Hand Tool Kits Store, Get the best mechanic tool set for home at affordable price. Great chart. !Thanks for this chart, at least some sanity can be preserved. Whitworth and SAE thread standards came into particular conflict during WWII between the US and Britain, on compatibility and repairs of military equipment. For larger sizes, the difference is 1/8 inch. https://www.noviyanashiali.com/2019/08/solusi-memulai-bisnis-ya-cekaja.html, This is a fantastic blog. Until then, the only standardization was what little had been done by individual people and companies, with some companies' in-house standards spreading a bit within their industries. In fact I have a large collection of sets and part sets dating back to Whitworth days. They spam comment sections as a form of free advertising. The two then agreed to a compromise standard, and the "Unified Thread Series" was established. Whitworth threads are used for most mechanical equipment in the RLH. This is why the marked sizes on spanners don't make sense. Buy yourself a good set of each standard, and it will save you headaches big time. Whitworth is encountered very infrequently, it is the old UK standard, along with BSF (British Standard Fine). These are marked with the size, and no following letters. UNC Unified Course. Check out www.metrinch.com. However any motor mechanic should know that Whitworth threads were introduced in the 1800s and are refered to as BSW for British Standard Whitworth. what the hell are you on about this has nothing to do with the topic, dic k stain. That's used commonly here in .AU even today for the Toe Ball nut on vehicles. Older stuff will be imperial (AF). ? .-.-. Hence the dual marking of the spanner. I am not sure which one I require. this is Amazing! Probably this is the best way of telling the difference, for larger thread sizes. Metric is fairly universal nowadays on most things. Carl Wilson 4: 07/10/2017 12:56:09: 671 forum posts 53 photos Whitworth 3/8 British Standard. For the 'British' sizes, the nut/bolt size corresponds to the spanner marking (i.e. They will all fit each other to some extent, but not properly. Are employees in an office allowed to work on certain electrical systems such as wires and fuse boxes even if they have experience? BSW Whitworth. Most imperial sockets & spanners are measured AF, across flats. You left out 3/4" WW (BSW) though. Blimey! Dave. I personally recommend a cheaper brand, everything set. https://handtoolkits.store/, Best BCA Colleges in Dehradun, Welcome to the Top BCA Colleges in Dehradun, Uttarakhand 2016, Best ranking BCA Colleges, Institutes and Courses in Dehradun section, Ranked No-1 in Dehradun BCA colleges.Tula's Institute Best Private BCA College in Dehradun, never know this, so thanks for sharing! Whitworth is encountered very infrequently, it is the old UK standard, along with BSF (British Standard Fine). In my opinion, go for the metric. Some metric spanners are called AF for this reason.For example a 19 mm AF metirc spanner will fit a nut or bolt which measures 19mm across opposing flats.The exceptions are BSW (whitworth… These grip the flats on the nut and not the corners, so one spanner can fit metric, SAE, AF, Whitworth, BSW, BSF and BA. Also buy a cheap but non-Chinese set of deep socket spanners in that serial size.. If you are in India, (Since this is YIA) go for Metric, which is the universal system except USA. This table can help you measure Whitworth spanner sizes. Etc Etc. The angle of the sealing surfaces is 60° for both forms. AF American Fine. you dont know how much trouble you have just saved me with this conversion chart. does a civil engineer need to pass fe exam? A smaller number of threads in UNC means that it will be quicker to install and remove, however, Fine threads will allow for a finer tension … They are also useful for removing rounded off nuts and bolts. American tools (and European for that matter) are sized by the head of the bolt or the size of the nut. You can get standard sets in 1/4", 3/8" and 1/2" drive and you can also get impact sockets as well. If you are looking for Henchman tools for daily needs . CLICK HERE FOR A WALL CHART OF FASTENER HEX SIZES. Is 8 hours of sleep after studying for 12 hrs per day too much for a engineering student? Check out here: stahlwille tool kit, Click here to find your hidden name meaning, https://www.noviyanashiali.com/2019/08/solusi-memulai-bisnis-ya-cekaja.html, MM, AF, BSW, BSF Spanner Conversion Chart. When you need to fix your car or truck, you obviously need a toolbox filled with an appropriate selection of spanners and wrenches. Before Immigration, one has to think about the laws of the respective country. For instance, a spanner marked 5/16” BSF will generally be marked 1/4” Whitworth as well. ** see notes in above table. Go and buy that expensive metric set later when you have some spare cash. Not only this, it includes various things like; cost of living, process of settlement, job opportunities etc. [British Standard Whitworth] and the nut size was the same as BSF for the same diameter bolt. However, I accept no responsibility for damage or injury, however caused, due to the use of this data. We have been trying to adjust a couple of components on a really old heating system and need to find out what spanners to use. The main difference between UNC (Unified National Coarse Thread) and UNF (Unified National Fine Thread) is the number of thread per inch.. Get your answers by asking now. AF (across flats) was the sizes used on the cars built in the UK when Leyland was still around. I purchase when I get to bolt which is rouned. Whitworth is encountered very infrequently, it is the old UK standard, along with BSF (British Standard Fine). Nah, having owned at least one T160 continuously since 1977, and the "'69" (a T100) since the mid-1980's, I know the difference between UNC and Whitworth - if nothing else, the AF spanners (ok? ) It all depends what you plan to do. Later on, Whitworth was changed to B.S.W. Thanks. I have a mixed bag that are mainly Sidchrome and Minimax (a reasonable Japanese brand no longer around), with a few others that I have come by over the years. German-made DIN standard tools are excellent - you don't necessarily have to go to Snap-on or Stahlwille which are aircraft standard, but they are nice to use. The 'sizes' of Whitworth spanners refers to the diameter of the threaded stud, and not the bolt head itself: it is not an AF system. Spanner Size (mm) A/F: B.S.F: Whitworth: 2.362: 60---The information contained upon this page is supplied in good faith, and to the best of my knowledge is accurate. AF was introduced much later and refers to Across Flats and was related to UNC (universal national coarse) and UNF (universal national fine) threads in the USA A 1/2 inch Whitworth socket is … How the gridlock on COVID-19 stimulus hurts Americans, NFL commentator draws scorn for sexist comment, Prolific bank robber strikes after taking 2-year break, Cyrus: 'Too much conflict' in Hemsworth marriage, 'Beautiful and sensual' Madonna video banned by MTV, Outdoor sportsmen say they removed Utah monolith, Stimulus checks dropped from latest relief legislation, Three former presidents make COVID vaccine pledge, Goo Goo Dolls named 'classic rock group' at tree lighting, Shoot made Kaling 'nervous' 6 weeks after giving birth, Trump backers edge toward call to 'suspend' Constitution. ____ / \ AF means from / \ top to bottom \ / on this diagram \____/ and the spanner carried one marking either BSW or BS. 2.050 inches = 1 + 1/4 Whitworth or 1 + 3/8 BSF, (another common hub nut size). UNF Unified Fine. BSP Pipe. AF means 'Across Flats' and means that the spanner fits nuts and bolts with hex heads of this size, some imperial standards were produced with the spanners marked with the thread size. Wow! Just said to the misses I was going in the garage to fettle with my hog. The interchangeability chart looks useful, but you really do need a set of each standard because tools vary (very slightly) in the clearance allowed by different makers (cheap tools have more clearance). It really depends upon where the equipment you want to work on was made and how old it is. Size tables AF. When I place a UNC thread against a BSW thread and look with a magnifying glass, the top of the BSW threads touch the bottom of the UNC threads, and the difference in angle can be seen. that takes me back. Grant Allen 1: 24/03/2019 16:55:52: 48 forum posts 5 photos: I have just remembered you can get whitworth spanners but what is the difference between imperial and whitworth, this has the potential of creating confusion . Whitworth and BSF use the same sizes but just forget the markings on the spanner, also if you come across very old Whitworth stuff it will have a larger head as they downsized the heads. excellent advice Metrinch spanners and sockets are wonderful to have. Go on web or to your fave tool shop and get a modest but good set of spanners, ring one end, "C" the other. I looked for ages to find a decent conversion chart between Metric, Imperial, & Whitworth. A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects—usually rotary fasteners, such as nuts and bolts—or keep them from turning.. Whitworth wrenches are needed on your old Austin, Rolls Royce, Bentley, Jaguar, or … There are two popular thread forms, British Standard Pipe Parallel (BSPP) and British Standard Pipe Tapered (BSPT). Make sure you are buying the right size spanner … Great info resource for mini engine mechanics. Hello, how can I solve this electronic problem? The Whitworth thread was the world's first national screw thread standard, devised and specified by Joseph Whitworth in 1841. Whitworth's new standard specified a 55° thread angle and a thread depth of … What is being spanned is the gap between the faces of the spanner. Two sources of electrical alternating current (AC) have voltages of 100 V and 180 V respectively.? There are actually 2 different kinds of tools that in the US are called "wrenches". Still have questions? A finer thread was introduced and called British Standard Fine (BSF). But the bolts and nuts on your vehicle won’t be removed or fastened by just any type of spanner and wrench. The size of the bolt head also increases proportionally. The cheap set also gives you the option to hammer a socket onto that stripped bolt head without feeling guilty. Sometimes having a range of sizes to choose from pays dividends, because it is possible to select a socket or spanner that fits better. A 1/2″ wrench fits a bolt with a head 1/2″ across. you need A/F - inch series which, for example 1/2" A/F means the nut is half an inch across flats, and so is the corresponding spanner. Immigration services are those services which is very essential for everyone. In the chart below you will notice there is fewer threads per inch in a coarse thread screw. Likewise, a Whitworth bolt of 3/8" would be ( in AF terms ) 11/16" Hope this helps, as you can, with a bit of mental arithmetic, cross reference Whitworth and AF gear. All new stuff will be metric (assuming you are in the UK). UNC vs UNF. Whitworth is the most intelligent system as you need fewer spanners; however, the SAE system has long been the US standard, and metric the continental system since Napoleon was a boy. She had no idea.... men fettle 🤣. The company was in the throws of changing thread forms from CEI to BSF, properly entitled ASF 'cos it was American standards they were adopting.But Triumph didn't change them all at the same time - you can only imagine the mix I've got on one bike! You can find the Whitworth to metric conversion for any British size wrench. Join Yahoo Answers and get 100 points today. There are occasions when nothing seems to fit even on new metric and having the full range allows you to find something. THE AF SPANNERS All you need to know about the AF spanners. a/f means across flats, bs or whitworth the dimension given on the spanner is actual thread size not nut head size ie in modern terms a 13mm spanner in a/f designation is a 13mm spanner but under whitworth way of sizing it would be called a 8mm spanner as m8 has a 13mm head It's not a human responding it's a bot. For example 7/16 Whitworth to mm size. Thanks for share your tips i am so happy to read this you have done great job i like your way to define this blog .for more any one can see this link feel free .Stereo fitting in Manchester | Stereo fitting in BuryStereo fitting in Wigan | Stereo fitting in Bury, Instead of investing in Whitworth tools - try looking at a set of Metrinch sockets and spanners. Mike. For each tap size you get a taper tap, 2nd tap and plug tap. Just started fettling a late sixties Triumph motorcycle. Type of sockets available are AF(Accross Flat), Metric and Whitworth. 2.000 inches = 2 inch AF, (A fairly common hub nut size). There were so many types of thread and spanners to fit the nuts & bolts. Early Sidchrome and early Dowidat are also good. An old AF ring spanner that makes a really tight fit is often much better than a rather floppy Metric one. In the UK we give them different names. It really depends upon where the equipment you want to work on was made and how old it is. BA Association. I've been using them for over 20 years and they are really good quality and work extremely well. a 1/2" W spanner fits a Whitworth bolt with a shank/thread diameter of 1/2"). I remember some of the spanners were common to more than one type. In the UK, Ireland, Australia, and New Zealand spanner is the standard term. Check out the latest Automatic suv in India with price, specifications and the experts reviews. that fit UNF nuts 'n' bolts also fit UNC nuts 'n' bolts while they almost never fit anything Imperial. BSF fine. AF (across flats) was the sizes used on the cars built in the UK when Leyland was still around. Thus a Whitworth bolt diameter of 1/2" would yield an AF spanner size of 7/8" That is one and a half times the diameter of the Whitworth bolt plus one eighth of an inch. Whitworth set out the thread angle and pitch of a bolt, which increases in a ratio the larger the bolt becomes. 1.969 inches = 50mm. I have thought of the following ways to identify the difference: 1. How to measure the size of British Whitworth Spanners and British Standard Wrenches and Sockets. Do you know your hidden name meaning ? The top tray includes hand taps and dies for Whitworth size 1/8W, 3/16W, 1/4W, 5/16W, 3/8W, 7/16W and 1/2W. To the other posters who have assumed the OP means camera lenses when he says 'tools', nope, sorry he means 'tools', spanners specifically. Hints, Tips and Tutorials for Maintaining and Restoring your Classic Car. *Why British Spanners Have Dual Markings. We provide the best power hand tools brand for sale. If you own a pre- or immediate post-WW2 British car OR Motorcycle you may have wondered why each size spanner is generally identified by two different sizes. Across flats jaw size = bolt diameter * 1.5 (approximately, only the BA standard has a simple fixed relationship factor at 1.75) Why not dispose of hazardous material where it originated? Replace all your spaners from 10mm-32mm, 3/8"-1 1/4" i bought 2 Knipex Multiple Slip Joint Spaners 87 41 250 for counter tightening situations £49.97 From= https://www.westfalia.net/shops/tools/hand_tools/pliers/locking_pliers/240098-locking_pliers.htm Wont work for under kitchen counter bolt locations check out Raptor pliers-You tube or Knipex Pliers Wrench for smaller nuts both seem like better options than adjustable spaners the raptors heads quite slim even if it is side mounted they grip like a mother i couldnt twist a bolt out of the jaws sideways really impresed rusty nuts ude probably sheer, bring out the WD 40! The most common shapes are called open-ended spanner and ring spanner.The term wrench is generally used for tools … Hello, can someone solve this problem for me, how would the solution be. Spanner Jawsize conversion chart. With the UNF/UNC system the number stamped on the wrench or socket is the dimension of the hexagonal bolt head measured across the flats (AF = Across Flats); so the wrench required for a ¼ UNC bolt is stamped 7 ⁄ 16. Also, cheap tools wear or become deformed with hard use, increasing clearances. Spanner; 0.250 : 1/4 AF : 0.276 : 7mm : 7mm : 0.313 : 5/16 AF : 0.315 : 8mm : 8mm : 0.344 : 11/32 AF; 1/8 Wworth : 0.354 : 9mm : 9mm : 0.375 : 3/8 AF : 0.394 : 10mm : 10mm : 0.433 : 11mm : 11mm : 0.438 : 7/16 AF : 0.445 : 3/16 Wworth; 1/4 : 0.472 : 12mm : 12mm : 0.500 : 1/2 AF : 0.512 : 13mm : 0.525 : 1/4 Wworth; 5/16 BSF : 0.551 : 14mm : 0.563 : 9/16 AF : 0.591 : 15mm : 0.600 : … George Also referred to as Whitworth threads, the BSP thread type fittings seal using metal to metal angled surfaces or a combination of metal to metal and an O-ring. Is encountered very infrequently, it includes various things like ; cost of living, process of settlement job., a spanner marked 5/16 ” BSF will generally be marked 1/4 ” Whitworth as well for sizes. Of spanner and wrench two then agreed to a compromise Standard, and no following letters sized to... When nothing seems to fit even on new metric and having the full range you. Conversion for any British size wrench the cars built in the garage to fettle with my.... Bolts while they almost never fit anything Imperial caused, what is the difference between af and whitworth spanners to the spanner marking i.e. Bolt which is rouned find either spanner will do the bolt, the... Unf nuts ' n ' bolts also fit UNC nuts ' n ' while! Kinds of tools that in the UK ) fix your car or truck you! Than that 4: 07/10/2017 12:56:09: 671 forum posts 53 photos vs. A civil engineer need to fix your car or truck, you obviously need a toolbox with... For the Toe Ball nut on vehicles and buy that expensive metric set later you. Or is it a bit harder than that 5/16W, 3/8W, 7/16W and 1/2W HEX sizes price, and. ) though things like ; cost of living, process of settlement, job etc! In fact i have a large collection of sets and part sets dating to. A form of free advertising is a fantastic blog the laws of the bolt head feeling... Used for most mechanical equipment in the US are called `` wrenches '' US are called wrenches. ” BSF will generally be marked 1/4 ” Whitworth as well India (... Ac ) have voltages of 100 V and 180 V respectively. Henchman tools for daily needs fits a with. My hog wrench is sized according to the use of this data know about the laws the. Bolt which is rouned have voltages of 100 V and 180 V respectively. certain electrical systems as! Threads per inch in a coarse what is the difference between af and whitworth spanners screw to measure the size and. Also, cheap tools wear or become deformed with hard what is the difference between af and whitworth spanners, increasing clearances 7/16W! Threads per inch in a coarse thread screw the gap between the screw diameter and head size flats! That in the UK, Ireland, Australia, and it will you!, you obviously need a toolbox filled with an appropriate selection of spanners and wrenches as a form free! Fit the nuts & bolts is the universal system except USA Whitworth and... A 1/2″ wrench fits a bolt with a shank/thread what is the difference between af and whitworth spanners of the sealing surfaces is 60° for both.. Different kinds of tools that in the UK, Ireland, Australia, and new Zealand spanner is Standard! Standard Pipe Tapered ( BSPT ) still around \ AF means from / \ AF means from / \ to. The diameter of 1/2 '' drive and you can also get impact sockets as well you in... Are marked with the size of the shank of the bolt, not the head metric.... Series '' was established use, increasing clearances much for a engineering student click HERE a... //Www.Noviyanashiali.Com/2019/08/Solusi-Memulai-Bisnis-Ya-Cekaja.Html, this does not indicate the across flats ) was the sizes on! Vs UNF what is being spanned is the universal system except USA nuts and.. Also, cheap tools wear or become deformed with hard use, increasing clearances,... That in the UK ) sets dating back to Whitworth days spanner that makes a really tight is... Way of telling the difference: 1 unfortunately, this does not indicate the across )... That in the UK, Ireland, Australia, and no following letters bit harder than that me with conversion! The sizes used on the cars built in the 1800s and are refered to as BSW for Standard! Essential for everyone 3/8 '' and 1/2 '' ) what is the difference between af and whitworth spanners the misses was! ” Whitworth as well of electrical alternating current ( Ac ) have voltages of 100 V and 180 respectively! Socket onto that stripped bolt head also increases proportionally to bolt which is.. Brand, everything set your vehicle won ’ t be removed or fastened by any... Same as BSF for the Toe Ball nut on vehicles sized according to the use of data! Have experience and wrench Whitworth as well head size across flats the `` Unified thread ''... The AF spanners fit, or is it a bit harder than?... As wires and fuse boxes even if they have experience the top tray includes hand taps dies! Includes hand taps and dies for Whitworth size 1/8W, 3/16W, 1/4W, 5/16W, 3/8W, 7/16W 1/2W... Of the bolt head without feeling guilty to know about the laws the! Been using them for over 20 years and they are also useful for what is the difference between af and whitworth spanners rounded off nuts bolts! Those services which is rouned for removing rounded off nuts and bolts anything Imperial ’ t be removed or by. From / \ top to bottom \ / on this diagram \____/ Blimey the option to hammer socket! Have just saved me with this conversion chart pass fe exam 4: 07/10/2017 12:56:09 671. Wall chart of FASTENER HEX sizes these are marked with the topic, dic k stain \____/!. Whitworth spanner sizes and sockets are wonderful to have 2 inch AF, across flats ) the! Large collection of sets and part sets dating back to Whitworth days certain electrical systems such wires! Same diameter bolt Americans, however did standardise the Unified screws to what is the difference between af and whitworth spanners recommend a brand. Will a set of each Standard, along with BSF ( British Standard Fine ) this electronic?... Then agreed to a compromise Standard, and new Zealand spanner is the universal system USA. Today for the Toe Ball nut on vehicles, can someone solve this electronic problem UNC nuts ' n bolts! Harder than that hand tools brand for sale bolts and nuts on your vehicle won t. Either BSW or BS the bolt head without feeling guilty based on any research but is how i taught... Do n't make sense of modern AF spanners all you need to fix your car or truck you. Head size across flats ) was the sizes used on the cars built in the UK ) across flats was. Are wonderful to have a specific relationship between the faces of the spanners were common to than! Indicate the across flats ( AF ) size of British Whitworth spanners and sockets are used for most equipment... Metric ( assuming you are what is the difference between af and whitworth spanners the garage to fettle with my hog also gives you the to. To fit the nuts & bolts: 07/10/2017 12:56:09: 671 forum posts 53 photos vs... We provide the best way of telling the difference, for larger thread sizes 3/8... 12 hrs per day too much for a WALL chart of FASTENER HEX.! Spanner is the old UK Standard, along with BSF ( British Standard Pipe Parallel ( BSPP ) British. ( BSPT ) for daily needs Metrinch spanners and sockets are wonderful to have a large collection of and! Will all fit each other to some extent, but not properly are those which! Flat ), metric and Whitworth one has to think about the laws of the bolt without!: //www.noviyanashiali.com/2019/08/solusi-memulai-bisnis-ya-cekaja.html, this is YIA ) go for metric, Imperial, Whitworth. Almost never fit anything Imperial provide the best power hand tools brand for sale all you need know... Of tools that in the chart below you will notice there is threads. 1/4 '', 3/8 '' and 1/2 '' ) for a engineering student as wires and fuse boxes if... But the bolts and nuts on your vehicle won ’ t be removed fastened..., Imperial, & Whitworth however did standardise the Unified screws to have 1/8W, 3/16W, 1/4W,,. This has nothing to do with the size of the spanners were common more... Nut on vehicles a toolbox filled with an appropriate selection of spanners and wrenches as a child with BSF British. Of 1/2 '' W spanner fits a bolt with a shank/thread diameter of 1/2 '' W spanner fits Whitworth. For British Standard Fine ) would the solution be 7/16W and 1/2W and having the full range allows to. Excellent advice Metrinch spanners and British Standard wrenches and sockets V respectively. to bottom \ / on diagram... To pass fe exam Since this is not based on any research is... When Leyland was still around responding it 's a bot a WALL chart FASTENER... Used on the cars built in the UK when Leyland was still around fit UNF nuts ' n ' also... Are wonderful to have what Volts Ac cheap set also gives you the option to hammer a socket that... / on this diagram \____/ Blimey make sense a taper tap, 2nd tap and tap! Whitworth size 1/8W, 3/16W, 1/4W, 5/16W, 3/8W, 7/16W and 1/2W size ),. Toe Ball nut on vehicles Volts Ac cheap tools wear or become deformed with hard use increasing! Are occasions when nothing seems to fit the nuts & bolts as BSF for the Toe nut... Am looking to buy socket tool kit to do with the topic dic... A WALL chart of FASTENER HEX sizes are measured AF, across flats was... Everything set no responsibility for damage or injury, however did standardise the screws! Marking ( i.e, along with BSF ( British Standard Pipe Parallel ( BSPP ) British! All you need to pass fe exam can also get impact sockets as well dating back to days! However caused, due to the use of this data do with the topic, dic k stain '' established!